A transgender Long Island woman has been busted for harassing the family of a Suffolk County cop who arrested her last year for fleeing police after a crash, officials and police sources said.

Beatrix Lacroix of Deer Park allegedly made a harassing phone call to the wife of the officer who arrested her after an Oct. 23 car wreck that left her facing 12 charges, including speeding and running stop signs, Suffolk police said.

Lacroix, 31, was picked up two days after the May 16 call was made and hit with a charge of second-degree aggravated harassment, cops said. 

Lacroix also allegedly sent a text suggesting she knew where the officer lived and photos of his home were found on her phone, sources said.

“We expect our officers to carry out their duties professionally and without fear that arrests made in the line of duty will lead to intimidation, harassment, or retaliation against them or their families,” Suffolk County Police Commissioner Kevin Catalina said.

“Attempts to infiltrate or target the personal lives of our officers are unacceptable, and we will not tolerate any form of retaliation directed at those who serve and protect this community.”

Lacroix was arraigned May 19 at First District Court in Central Islip and given a future court date. An order of protection was granted to the cop’s family.

Suffolk County PBA President Lou Civello called any case that involves an alleged criminal capable of finding and threatening a family member of the cop who made the arrest “chilling.” 

“Police officers’ families are not safe in their own homes,” he said. “This underscores the need for tougher laws to not only prosecute these crimes but to prevent them from happening.”